Rhenium as APR Typical Specs
The following specifications are expressed as percentages of salt weight:
Water Insoluble Matter 0.03% max.
Rhenium Content 69.3% min.
The concentration of the following impurities shall be calculated on the basis of an assumed rhenium content of 69.4%:
Element Max. Concentration, ppm
Pb, Sb, As, Ag, Sn, Fe, Cu 30, each